EFFECT OF GROWTH REGULATOR (GIBBERELLIC ACID) ON SOME BIOCHEMICAL OF GLOBE ARTICHOKE AND ITS RELATION TO POPULATION DENSITY OF SOME ASSOCIATED PESTS. | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 7, Volume 28, Issue 7, July 2003, Page 5731-5736 PDF (676.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2003.251426 | ||||
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| Author | ||||
| Horya A. Abd EI-Wahab | ||||
| Plant Protection Res. Inst. ARC. Dokkl, Egypt. | ||||
| Abstract | ||||
| Experiment was conducted at Giza governorate during two successive seasons 2002 12001 and 2001 12002 to study the effect of Gibberellic acid (GA3) on earliness, carbohydrates. total nitrogen, soluble solids, total acidity, sugar fractions and Inulin. The obtained data indicated that treatment with GA3 increased the population of Aphis gossypii Glover; Myzus persicae Sulzer; Bemisia tabaci Genn. Paradoxically the population of Acanthiophilus he/ianthi Rossi and Thrips tabaci Lind. was decreased. GA3 gave a highly significant in earliness of blooming; early and total yield and carbohydrate fractions in growing shoots in both seasons. Also. reducing and total sugar percentages were increased.On the other hand. C/N ratio; total nitrogen content in leaf. total solublesolids; acidity; inulin and non reduced sugar were no affected for both early and total yield. | ||||
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